Portable generator



FIG. 1 is a front perspective view of a portable generator showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear side elevational view thereof;

FIG. 5 is a front side elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The broken line showing of portions of the portable generator is for the purpose of illustrating environmental structure only and forms no part of the claimed design. 

CLAIM The ornamental design for a portable generator, as shown and described. 